.treeview {
    width: 25%;
    margin: 10px;
}

.treeview a {
    border-radius:25px;
    -moz-border-radius:25px;
    display: block;
    width: 150px;
    height: 30px;
    line-height: 30px;
    text-decoration: none;
    background: url("../images/li_icon.gif") no-repeat center left;
}

.treeview a:hover {
    color: black;
    font-size: 18px;
}

.tinhthanh:link,
.tinhthanh:active,
.tinhthanh:visited {
    padding-left: 20px;
    color: blue;
}

.quanhuyen:link,
.quanhuyen:active,
.quanhuyen:visited {
    padding-left: 20px;
    margin-left: 20px;
    color: red;
}

.phuongxa:link,
.phuongxa:active,
.phuongxa:visited {
    padding-left: 20px;
    margin-left: 40px;
    color: green;
}

.thonxom:link,
.thonxom:active,
.thonxom:visited {
    padding-left: 20px;
    margin-left: 60px;
    color: orange;
}